CN106664290A - Data transmission method and device for photoelectric hybrid network - Google Patents

Data transmission method and device for photoelectric hybrid network Download PDF

Info

Publication number
CN106664290A
CN106664290A CN201580001273.0A CN201580001273A CN106664290A CN 106664290 A CN106664290 A CN 106664290A CN 201580001273 A CN201580001273 A CN 201580001273A CN 106664290 A CN106664290 A CN 106664290A
Authority
CN
China
Prior art keywords
transmission
link exchange
rdma
exchange
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201580001273.0A
Other languages
Chinese (zh)
Other versions
CN106664290B (en
Inventor
沈伟锋
赵秀楚
张丰伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of CN106664290A publication Critical patent/CN106664290A/en
Application granted granted Critical
Publication of CN106664290B publication Critical patent/CN106664290B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/36—Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/14—Multichannel or multilink protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0003—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0066—Provisions for optical burst or packet networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2212/00—Encapsulation of packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/16—Threshold monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/60—Software-defined switches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/321—Interlayer communication protocols or service data unit [SDU] definitions; Interfaces between layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0073—Provisions for forwarding or routing, e.g. lookup tables

Abstract

The present invention relates to the field of computers, and in particular to a data transmission method and device for a photoelectric hybrid network. The method comprises: receiving an RDMA transmission request, and determining an RDMA transmission type and a transmission data volume for performing data transmission according to the RDMA transmission request; determining a pre-set encapsulation format corresponding to the RDMA transmission type for performing data transmission and the transmission data volume for performing data transmission; receiving data to be transmitted, and encapsulating the data to be transmitted as a transmission data packet of the determined pre-set encapsulation format; according to the size of the transmission data packet, selecting a switching link for performing data transmission from an electrical switching link and an optical switching link; and sending the transmission data packet to an opposite end based on the selected switching link for data transmission. Therefore, a reasonable switching link can be selected for RDMA transmission when data transmission is performed every time, thereby avoiding the problem of resource waste, and making the maximum usage efficiency of resources of a photoelectric hybrid network.

Description

A kind of data transmission method and device of photoelectricity hybrid network Technical field
The present invention relates to computer realm, the more particularly to a kind of data transmission method and device of photoelectricity hybrid network.
Background technology
Remote direct data accesses (Remote Direct Memory Access, RDMA) technology, is produced to solve the delay of servers' data processing in network transmission.RDMA by network data directly incoming computer memory block, by data from a system moves quickly into remote system stored device, without being had any impact to operating system, so there is no need to use the processing function of how many computer, as shown in Figure 1.
Include specifically, RDMA communications are realized based on three kinds of queues：Transmit queue (Send Queue, SQ), receiving queue (Receive Queue, RQ) and completion queue (Completion Queue, CQ).Wherein, Work Queue Elements (the Work Queue Element of SQ storages, WQE) indicate to need the storage location of the data of transmission, the WQE of RQ storages indicates to receive the deposit position of data, the completion queue element (QE) (Completion Queue Element, CQE) of CQ storages indicates the performance for sending or receiving.In addition, SQ and RQ are collectively referred to as queue to (Queue Pair, QP), as shown in Figure 2.
Replicate and text exchange operation, thus can liberate memory bandwidth and central processing unit (Central Processing Unit, CPU) cycle therefore, because RDMA eliminates external memory storage, improve application system performance.
Light, which is exchanged, to be referred to change without any optical electrical, and input optical signal is switched directly into arbitrary light output end.It is one of key technology of all-optical network that light, which is exchanged,.In modern communication networks, all optical network is the developing direction of Future broadband communication network, and all optical network can overcome bottleneck limitation of the electron exchange on capacity, a large amount of to save networking cost, improve flexibility and the reliability of network.
Although traditional RDMA mainly application electricity exchanges, are due to the notable superiority that light is exchanged, the RDMA exchanged based on light has increasingly been taken seriously, wherein, the RDMA and base exchanged based on electricity The RDMA exchanged in light, which is compared, respectively quality, and the advantage that light is exchanged is high-throughput, but switching time is longer, and switching time is more than 10ms, and supports bad to burst flow.Electricity exchange advantage be to support burst flow, no switching problem, shortcoming be handling capacity it is relatively small, capacity run into bottleneck limitation.
Therefore, present industry increasingly tends to photoelectricity hybrid network, to make full use of the respective advantage that light is exchanged and electricity is exchanged.
In the photoelectricity hybrid network of prior art, interchanger end group is predicted analysis in the traffic statistics result to network packet, selects light switching path or electric switching path to send for follow-up packet according to analysis result.It is follow-up network packet distribution transmitting path, it is thus possible to cause the transmitting efficiency of system relatively low but such analysis is to exchange generator terminal progress, needs to carry out the traffic statistics analysis of substantial amounts of network packet due to exchanging generator terminal.In addition, the selection of transmitting path be basis before network packet traffic statistics analysis, and determination of being made prediction to follow-up data packet stream amount, it is thus possible to the situation of prediction error occur, make Path selection mistake occur, cause the wasting of resources.
The content of the invention
The embodiment of the present invention provides a kind of data transmission method and device of photoelectricity hybrid network, to avoid causing the traffic statistics analysis of a large amount of network packets Path selection the problem of mistake, wasting of resources occur.
First aspect is there is provided a kind of data transmission method of photoelectricity hybrid network, the data transmission method of the photoelectricity hybrid network, including：
Remote direct data access RDMA transmission requests are received, RDMA transport-types and transmitted data amount size that request determines to carry out data transmission are transmitted according to the RDMA；
It is determined that the RDMA transport-types and the default encapsulation format of the transmitted data amount size carried out data transmission that carry out data transmission described in correspondence；
Data to be transmitted is received, and the data to be transmitted is encapsulated as to the transmission packet of the default encapsulation format of the determination；
According to the size of the transmission packet, the link exchange carried out data transmission is selected in electric link exchange and light link exchange, and
The link exchange of the transmission data based on selection sends the transmission packet to opposite end.
With reference in a first aspect, in the first possible implementation, before reception RDMA transmission requests, further comprising：
Receive the RDMA transmission sent to the opposite end and set up request message, determine that the corresponding RDMA transport-types of request message are set up in the RDMA transmission；
The corresponding RDMA transport-types of request message are set up according to RDMA transmission, RDMA transmission is set up into request message is encapsulated as signaling data bag, and
The electric link exchange of selection sends the signaling data bag to the opposite end.
With reference in a first aspect, or first aspect any of the first possible implementation, it is described that RDMA transport-types and transmitted data amount size that request determines to carry out data transmission are transmitted according to the RDMA in second of possible implementation, including：
The RDMA transport-types carried out data transmission described in the command code determination in request are transmitted according to the RDMA, and
The RDMA transmitted data amount sizes carried out data transmission described in data link table to be sent and the determination of data block number in request are transmitted according to the RDMA.
With reference to first aspect, or the first possible implementation of first aspect is any of to second possible implementation, in the third possible implementation, the size according to the transmission packet, the link exchange carried out data transmission is selected in electric link exchange and light link exchange, including：
If it is determined that the size of the transmission packet is less than default thresholding, then electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange；
If it is determined that the size of the transmission packet is more than or equal to default thresholding, then when light link exchange is available, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange, when light link exchange is unavailable, selected according to the transmission cost of the transmission packet in electric link exchange and light link exchange described in the link exchange that carries out data transmission.
With reference to the third possible implementation of first aspect, in the 4th kind of possible implementation, the transmission cost according to the transmission packet selected in electric link exchange and light link exchange described in the link exchange that carries out data transmission, including：
Calculate and use electric link exchange to send the first duration that the transmission packet needs, and calculate the second duration for setting up new light link exchange needs；
If first duration is more than or equal to second duration, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange；
If first duration is less than second duration, electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange.
With reference in a first aspect, in the 5th kind of possible implementation, the link exchange of the transmission data based on selection sends the transmission packet to opposite end, including：
The link exchange of the transmission data based on selection, the transmission packet is sent by the port of intelligent network interface card to the opposite end, wherein, the port of the intelligent network interface card corresponds to light link exchange and electric link exchange respectively；Or
The transmission packet is sent to interchanger by intelligent network interface card, the link exchange of the transmission data based on selection, the transmission packet is sent to the opposite end by the port of the interchanger, wherein, the port of the interchanger corresponds to light link exchange and electric link exchange respectively.
With reference to the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, the transmission packet is being sent to interchanger by intelligent network interface card, the link exchange of the transmission data based on selection, before sending the transmission packet to the opposite end by the port of the interchanger, further comprise：
Link indicia is added for the transmission packet, wherein, the link indicia is used to indicate to send using electric link exchange or send using light link exchange.
Second aspect is there is provided a kind of data transmission device of photoelectricity hybrid network, the data transmission device of the photoelectricity hybrid network, including：
Receiving unit, for receiving remote direct data access RDMA transmission requests, RDMA transport-types and transmitted data amount size that request determines to carry out data transmission are transmitted according to the RDMA；
Determining unit, for the RDMA transport-types and the default encapsulation format of the transmitted data amount size carried out data transmission for determining to carry out data transmission described in correspondence；
Encapsulation unit, the determination is encapsulated as receiving data to be transmitted, and by the data to be transmitted Default encapsulation format transmission packet；
Selecting unit, for the size according to the transmission packet, selects the link exchange carried out data transmission in electric link exchange and light link exchange, and
Transmitting element, the link exchange for the transmission data based on selection sends the transmission packet to opposite end.
With reference to second aspect, in the first possible implementation, before reception RDMA transmission requests, further comprise：
The receiving unit, request message is set up for receiving the RDMA sent to the opposite end transmission, determines that the corresponding RDMA transport-types of request message are set up in the RDMA transmission；
The determining unit and the encapsulation unit, for setting up the corresponding RDMA transport-types of request message according to RDMA transmission, set up request message by RDMA transmission and are encapsulated as signaling data bag, and
The selecting unit and the transmitting element, for selecting electric link exchange to the opposite end transmission signaling data bag.
With reference to second aspect, any of or the first possible implementation of second aspect, in second of possible implementation, when the RDMA transport-types carried out data transmission according to RDMA transmission request determinations and transmitted data amount size, the receiving unit is used for：
The RDMA transport-types carried out data transmission described in the command code determination in request are transmitted according to the RDMA, and
The RDMA transmitted data amount sizes carried out data transmission described in data link table to be sent and the determination of data block number in request are transmitted according to the RDMA.
With reference to second aspect, or the first possible implementation of second aspect is any of to second possible implementation, in the third possible implementation, the size according to the transmission packet, when selecting the link exchange carried out data transmission in electric link exchange and light link exchange, the selecting unit is used for：
If it is determined that the size of the transmission packet is less than default thresholding, then electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange；
If it is determined that the size of the transmission packet is more than or equal to default thresholding, then when light link exchange is available, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange, when light link exchange is unavailable, selected according to the transmission cost of the transmission packet in electric link exchange and light link exchange described in the link exchange that carries out data transmission.
With reference to the third possible implementation of second aspect, in the 4th kind of possible implementation, the transmission cost according to the transmission packet selected in electric link exchange and light link exchange described in carry out data transmission link exchange when, the selecting unit is used for：
Calculate and use electric link exchange to send the first duration that the transmission packet needs, and calculate the second duration for setting up new light link exchange needs；
If first duration is more than or equal to second duration, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange；
If first duration is less than second duration, electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange.
With reference to second aspect, in the 5th kind of possible implementation, when the link exchange of the transmission data based on selection is to the opposite end transmission transmission packet, the transmitting element is used for：
The link exchange of the transmission data based on selection, the transmission packet is sent by the port of intelligent network interface card to the opposite end, wherein, the port of the intelligent network interface card corresponds to light link exchange and electric link exchange respectively；Or
The transmission packet is sent to interchanger by intelligent network interface card, the link exchange of the transmission data based on selection, the transmission packet is sent to the opposite end by the port of the interchanger, wherein, the port of the interchanger corresponds to light link exchange and electric link exchange respectively.
With reference to the 5th kind of possible implementation of second aspect, in the 6th kind of possible implementation, the transmission packet is being sent to interchanger by intelligent network interface card, the link exchange of the transmission data based on selection, before sending the transmission packet to the opposite end by the port of the interchanger, the transmitting element is further used for：
Link indicia is added for the transmission packet, wherein, the link indicia is used to indicate to send using electric link exchange or send using light link exchange.
The present invention has the beneficial effect that：
In the embodiment of the present invention, a kind of data transmission method of photoelectricity hybrid network is proposed：RDMA transmission requests are received, RDMA transport-types and transmitted data amount size that request determines to carry out data transmission are transmitted according to RDMA；It is determined that RDMA transport-types and the default encapsulation format of the transmitted data amount size carried out data transmission that correspondence carries out data transmission；Receive data to be transmitted, and the transmission packet for the default encapsulation format that data to be transmitted is encapsulated as determining；According to the size of transmission packet, the link exchange carried out data transmission is selected in electric link exchange and light link exchange, and the link exchange of the transmission data based on selection sends the transmission packet to opposite end.Therefore, intelligent network interface card on main frame is by analyzing receiving the RDMA carried out data transmission transmission requests, it is determined that the RDMA transport-types and transmitted data amount size that carry out data transmission, and determine that rational link exchange is transmitted according to the corresponding data package size being finally packaged into, avoid and send data packets at interchanger further according to traffic statistics result selection link exchange, cause the transmitting efficiency of system relatively low and the problem of to follow-up data packet stream amount prediction error, rational link exchange can be selected by realizing the RDMA transmission carried out data transmission every time, the problem of avoiding the wasting of resources, so that the resource of photoelectricity hybrid network has obtained the utilization of maximal efficiency.
Brief description of the drawings
Fig. 1 is RDMA data transfers schematic diagram in the prior art；
Fig. 2 is tri- kinds of work queue schematic diagrames of RDMA in the prior art；
Fig. 3 is the data transfer general introduction flow chart of photoelectricity hybrid network in the embodiment of the present invention；
Fig. 4 is RDMA transmission appealing structure schematic diagrames in the embodiment of the present invention；
Fig. 5 is photoelectricity hybrid network selection schematic diagram in the embodiment of the present invention；
Fig. 6 is the RDMA transmission schematic diagrames in the embodiment of the present invention between host A and main frame b；
Fig. 7 transmits the schematic diagram of request selecting transmitting path for intelligent network interface card in the embodiment of the present invention according to different RDMA；
Fig. 8 is the RDMA transmission schematic diagrames in the embodiment of the present invention between main frame 1 and main frame 2.
Fig. 9 is the data transmission device structural representation of photoelectricity hybrid network in the embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
In order to make full use of photoelectricity hybrid network to send data, the embodiments of the invention provide a kind of data transmission method and device of photoelectricity hybrid network, this method is：RDMA transmission requests are received, RDMA transport-types and transmitted data amount size that request determines to carry out data transmission are transmitted according to RDMA；It is determined that RDMA transport-types and the default encapsulation format of the transmitted data amount size carried out data transmission that correspondence carries out data transmission；Receive data to be transmitted, and the transmission packet for the default encapsulation format that data to be transmitted is encapsulated as determining；According to the size of transmission packet, the link exchange carried out data transmission is selected in electric link exchange and light link exchange, and the link exchange of the transmission data based on selection sends the transmission packet to opposite end.
Therefore, intelligent network interface card on main frame is by analyzing receiving the RDMA carried out data transmission transmission requests, it is determined that the RDMA transport-types and transmitted data amount size that carry out data transmission, and determine that rational link exchange is transmitted according to the corresponding data package size being finally packaged into, avoid and send data packets at interchanger further according to traffic statistics result selection link exchange, cause the transmitting efficiency of system relatively low and the problem of to follow-up data packet stream amount prediction error, rational link exchange can be selected by realizing the RDMA transmission carried out data transmission every time, the problem of avoiding the wasting of resources, so that the resource of photoelectricity hybrid network has obtained the utilization of maximal efficiency.
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in fig.3, the idiographic flow of the data transfer of photoelectricity hybrid network is in the present invention：
Step 300：RDMA transmission requests are received, are carried out data transmission according to RDMA transmission request determinations RDMA transport-types and transmitted data amount size.
Specifically, when some application program of application layer calls intelligent network interface card to send or receives data by RDMA interface, provided according to agreement, application program sends RDMA transmission to intelligent network interface card and asked, use command code (opcode), explicit data transmission be chunk data reading (read) or write out (write) process, or individual data message transmission (send).
RDMA is the memory block data directly incoming computer by network, and by data from a system moves quickly into remote system stored device, without being had any impact to operating system, so there is no need to use the processing function of how many computer.It eliminates external memory storage and replicated and protocol processes operation, thus can vacate bus space and cpu cycle for improving application system performance.
Specifically, when an application, which performs RDMA, reads (read) or write (write) request, under conditions of not needing any kernel internal memory to participate in, RDMA request is sent to local intelligent network interface card (Network Interface Card, NIC) from application in the user space is run.Local intelligent NIC reads the content of buffering, and is sent to target NIC by network.Wherein, target virtual address, internal memory key and data are contained in itself in the RDMA packets of transmission over networks.Therefore, RDMA operation realizes application to read data or to write data to this internal memory from the internal memory of a remote application.When target NIC receives the RDMA Message that local NIC is sent, internal memory key is confirmed, the RDMA of complete paired data reads or writes request.
And before the transmission of RDMA transmission request progress long data blocks is received, when receiving the RDMA transmission that locally applied layer sends to opposite end first and setting up request message, intelligent network interface card determines that the corresponding RDMA transport-types of request message are set up in RDMA transmission, the corresponding RDMA transport-types of request message are set up according to RDMA transmission, generally transport-type is send, request message is set up into RDMA transmission and is encapsulated as corresponding signaling data bag, and preferably selects electric link exchange and sends signaling data bag to opposite end.Wherein, signaling data bag includes interface negotiation packet (single data message), data sending request packet (single data message).
Because signaling data bag now is used to set up the necessary negotiation of the RDMA subsequently carried out data transmission transmission with opposite end, and determine the address of RDMA transmission and the authentication information such as internal memory key that subsequently carry out data transmission, therefore, signaling data bag is essentially single data message, and data volume is smaller, preferential choosing Select electric link exchange and send data, burst flow can be supported using electric link exchange well, the characteristics of no switching problem.
Usually, the data that sender applies are sent directly in the buffering area that data receiver's application is not yet clearly stated by send message, by being transmitted necessary negotiation, it is determined that the authentication information such as the address of follow-up RDMA transmission and internal memory key.
For example, the application program of host A needs the application program with host B to carry out RDMA transmission, when host A initiates to carry out RDMA transmission with host B first, the application program of host A sends RDMA transmission to the intelligent network interface card of host A and sets up request message, determine that the corresponding RDMA transport-types of request message are set up in RDMA transmission, the intelligent network interface card of host A sets up the corresponding RDMA transport-types of request message according to RDMA transmission and sets up request message and be encapsulated as corresponding signaling data bag RDMA transmission, and the electric link exchange of prioritizing selection sends the signaling data bag to opposite end.After the RDMA transmission negotiations of host A and host B are successfully established, it is determined that the authentication information such as the address of the RDMA transmission subsequently carried out data transmission and internal memory key.
After RDMA application program and Peer Negotiation success is locally initiated, now receive the RDMA carried out data transmission the transmission requests that application program in locally applied layer is sent, the RDMA transport-types that the command code in request determines to carry out data transmission are transmitted according to RDMA, and the data link table to be sent and data block number in the RDMA transmission requests carried out data transmission determine the RDMA transmitted data amount sizes carried out data transmission, refering to shown in Fig. 4.
As shown in Figure 4, the RDMA request carried out data transmission includes request ID, data link table to be sent, data block number, other necessary informations such as command code, wherein, Data-Link to be sent at least table includes data-bias, data segment, length and access rights.
Step 310：It is determined that RDMA transport-types and the default encapsulation format of the transmitted data amount size carried out data transmission that correspondence carries out data transmission.
According to the protocol contents of rdma protocol stack, it is determined that RDMA transport-types and the default encapsulation format of transmitted data amount size that correspondence carries out data transmission.
At present, RDMA has two kinds of protocol suites of Infiniband (infiniband, IB) and internet wide area remote direct memory access protocol (Internet wide-area RDMA protocol, iWARP), but this Both are most of similar.Specifically, the rdma protocol stack of iWARP protocol suites deposits (Direct Data Placement by RDMA, immediate data, DDP) agreement, the protocol Data Unit set (Marker-based based on mark, Protocol-data-unit-Aligned, MPA) three kinds of agreements are realized jointly, for ensureing the interoperability of express network.RDMA layer is used to RDMA read, write and send request message changing into RDMA Message, RDMA Message is changed into according to RDMA transport-type first, and RDMA Message is sent to DDP layers, DDP forwards a packet to RDMA Message segment encapsulation into DDP data on the MPA layers of lower floor, the RDMA Message being converted into is packaged into by several packets according to RDMA transmitted data amount size, DDP packets are inserted identifier by MPA layers, length and CRC (Cyclic Redundancy Check, CRC) verify, constitute MPA data segments.Transmission control protocol layer (Transmission Control Protocol, TCP) is responsible for being scheduled TCP data section, it is ensured that target location can smoothly be reached by giving out a contract for a project.Agreement (Internet Protocol, the IP) layer interconnected between network then increases necessary network routing data information in the packet, that is, adds the network routing data information of opposite end.
Step 320：Receive data to be transmitted, and the transmission packet for the default encapsulation format that data to be transmitted is encapsulated as determining.
The transmission packet for the default encapsulation format for being encapsulated as determining by data to be transmitted using the default encapsulation format of above-mentioned determination.
Step 330：According to the size of transmission packet, the link exchange carried out data transmission is selected in electric link exchange and light link exchange.
As shown in fig.5, after analyzing the RDMA request type carried out data transmission and data volume size and being packaged into corresponding transmission packet, specifically, the size of the transmission packet is compared with default threshold value first：
If it is determined that the size of transmission packet is less than default thresholding, then electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange.
If it is determined that the size of the transmission packet is more than or equal to default thresholding, then when light link exchange is available, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange, when light link exchange is unavailable, continue and then according to the transmission cost of the transmission packet The link exchange carried out data transmission is selected in electric link exchange and light link exchange.
Further, when it is determined that light link exchange is unavailable, the link exchange for selecting to carry out data transmission in electric link exchange and light link exchange according to the transmission cost of transmission packet, wherein, the computational methods of transmission cost are：Calculate and use electric link exchange to send the first duration that transmission packet needs, and calculate the second duration for setting up new light link exchange needs.
It is according to the detailed process that the transmission cost of transmission packet selects electric link exchange or light link exchange to send transmission packet to opposite end：
If the first duration is more than or equal to the second duration, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange.
If the first duration is less than the second duration, electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange.
Here the smaller value in the first duration and the second duration is selected as the transmission cost of the transmission packet.The link switching time of general fixed route is a fixed value, relevant with the physical property of equipment, wherein, when second it is a length of remove current light link exchange and set up this light link exchange time and.
For example, when the application program of host A is non-carries out RDMA transmission with host B first, the intelligent network interface card of host A is transmitted according to the RDMA received asks, judge RDMA transport-types and the transmitted data amount size carried out data transmission, it is determined that RDMA transport-types and the default encapsulation format of transmitted data amount size that correspondence carries out data transmission, receive data to be transmitted, and the transmission packet for the encapsulation format that data to be transmitted is encapsulated as determining.
First, the size of the transmission packet of host A is compared with default threshold value, when it is determined that being more than default thresholding, determine whether whether current light link exchange can use, whether i.e. current light link exchange is light link exchange of the host A to host B, if it is determined that when current light link exchange is unavailable, then continue to calculate the transmission cost for sending the transmission packet, above-mentioned the first duration and the second duration is calculated, it is determined that link when wherein shorter corresponding to length is used as the link exchange finally carried out data transmission.
Step 340：The link exchange of transmission data based on selection sends transmission packet to opposite end.
In the size according to transmission packet, selection carries out data from electric link exchange and light link exchange After the link exchange of transmission, the link exchanges of the transmission data based on selection to opposite end can send data transfer rate bag by two ways：
First, transmission packet is sent to opposite end by the port of intelligent network interface card, wherein, the port of intelligent network interface card corresponds to light link exchange and electric link exchange respectively.
Second, transmission packet is sent to interchanger by intelligent network interface card, the link exchange of the transmission data based on selection sends transmission packet by the port of interchanger to opposite end, wherein, the port of interchanger corresponds to light link exchange and electric link exchange respectively.
In the second way, transmission packet is being sent to interchanger by intelligent network interface card, the link exchange of transmission data based on selection, before transmission packet being sent by the port of interchanger to opposite end, intelligent network interface card is that transmission packet adds link indicia, wherein, link indicia is used to indicate to send using electric link exchange or send using light link exchange.For example, mark here can be vlan tag etc..
In another example, intelligent network interface card is the packet addition vlan 100 for using light link exchange to send, and for the packet addition vlan200 sent using current source road, intelligent network interface card transmits packet to interchanger.Interchanger is received after the packet of intelligent network interface card, and vlan100 packet is sent to light link exchange interface by interchanger according to the mark of packet, and vlan200 packet is sent to electric link exchange interface.
In embodiment 1, refering to shown in Fig. 6, local intelligent network interface card receives the RDMA carried out data transmission the transmission requests sent using X, the request type is write, transmitted data amount size is some value E, the request had carried out RDMA transmission before being a RDMA transmitting procedure from host A to main frame b, host A and main frame b.Arbiter modules in intelligent network interface card determine the RDMA transmission request types currently carried out data transmission and data volume size, it is determined that RDMA transport-types and the default encapsulation format of transmitted data amount size that correspondence carries out data transmission, receive data to be transmitted, and the transmission packet for the encapsulation format that data to be transmitted is encapsulated as determining.Further, when judging that the size of the packet is more than pre-determined threshold 64K, wherein, default thresholding is related to the actual performance of cyber-net, arbiter modules in intelligent network interface card judge whether light link exchange can use, if unavailable, the first duration that transmission packet needs are sent using electric link exchange is calculated, i.e. data are long Degree divided by bandwidth, with the second duration, such as 200ms, compare two duration sizes, if the first duration is more than or equal to the second duration, light link exchange is then selected in electric link exchange and light link exchange as the link exchange carried out data transmission, if the first duration is less than the second duration, selects electric link exchange to be used as the link exchange carried out data transmission in electric link exchange and light link exchange.
After end of transmission, main frame b feeds back an ACK to host A.It is assumed here that the second duration is less than the first duration, the transmission packet is sent using light link exchange, main frame b by electric link exchange feeding back ACK to host A, wherein, ACK is signaling data bag.
Refering to shown in Fig. 7, usually, intelligent network interface card is directed to different RDMA request types, and the request of read and write types is usually the transmission of long data block, and the request of send types is the signalling of small data block, but, send, rather than can only be sent by electric link exchange it needs to be noted that the request of send types is the electric link exchange of prioritizing selection, if now light link exchange can use between two main frames, it can also be sent using light link exchange.Therefore, intelligent network interface card is transmitted by distributing suitable link exchange to the transmission requests of RDMA each time so that the resource of photoelectricity hybrid network has obtained the utilization of maximal efficiency.
In addition, because the request of read and write types is usually the transmission of long data block, and the request of send types is the signalling of small data block, therefore the link exchange that every kind of transport-type is used can also be pre-set, refering to described in Fig. 8, request for read and write types is preferred to use light link exchange and is transmitted, request for send types is preferred to use electric link exchange and is transmitted, wherein, connection request (Connection request) is a send concrete application type, when connection is set up, without consulting address, first use default configuration.For example, in Fig. 8, the RDMA request for the send types between main frame 2 that main frame 1 is initiated sends signaling data bag using electric link exchange, and all signaling data bags using electric link exchange transmission are indicated by the solid line.The RDMA request of read and write types sends transmission packet using light link exchange, and the transmission packet that all use light link exchanges are sent is represented by dashed line.
As shown in fig.9, a kind of data transmission device of photoelectricity hybrid network, including：
Receiving unit 90, for receiving remote direct data access RDMA transmission requests, RDMA transport-types and transmitted data amount size that request determines to carry out data transmission are transmitted according to RDMA；
Determining unit 91, the default encapsulation format for determining the correspondence RDMA transport-types carried out data transmission and the transmitted data amount size carried out data transmission；
Encapsulation unit 92, for receiving data to be transmitted, and the transmission packet for the default encapsulation format that data to be transmitted is encapsulated as determining；
Selecting unit 93, for the size according to transmission packet, selects the link exchange carried out data transmission in electric link exchange and light link exchange, and
Transmitting element 94, the link exchange for the transmission data based on selection sends transmission packet to opposite end.
Optionally, before RDMA transmission requests are received, further comprise：
Request message is set up in receiving unit 90, the RDMA transmission sent for receiving to opposite end, determines that the corresponding RDMA transport-types of request message are set up in RDMA transmission；
Determining unit 91 and encapsulation unit 92, for setting up the corresponding RDMA transport-types of request message according to RDMA transmission, set up request message by RDMA transmission and are encapsulated as signaling data bag, and
Selecting unit 93 and transmitting element 94, for selecting electric link exchange to opposite end transmission signaling data bag.
Optionally, when transmitting RDMA transport-types and the transmitted data amount size that request determination carries out data transmission according to RDMA, receiving unit 90 is used for：
The RDMA transport-types that the command code in request determines to carry out data transmission are transmitted according to RDMA, and
The RDMA transmitted data amount sizes that data link table to be sent and data block number in request determine to carry out data transmission are transmitted according to RDMA.
Optionally, according to the size of transmission packet, when selecting the link exchange carried out data transmission in electric link exchange and light link exchange, selecting unit 93 is used for：
If it is determined that the size of transmission packet is less than default thresholding, then electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange；
If it is determined that the size of transmission packet is more than or equal to default thresholding, then when light link exchange is available, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange, when light link exchange is unavailable, according to the transmission cost of transmission packet in electric link exchange and light The link exchange carried out data transmission is selected in link exchange.
Optionally, when selecting the link exchange carried out data transmission in electric link exchange and light link exchange according to the transmission cost of transmission packet, selecting unit 93 is used for：
Calculate and use electric link exchange to send the first duration that transmission packet needs, and calculate the second duration for setting up new light link exchange needs；
If the first duration is more than or equal to the second duration, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange；
If the first duration is less than the second duration, electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange.
Optionally, when the link exchange of the transmission data based on selection is to opposite end transmission transmission packet, transmitting element 94 is used for：
The link exchange of transmission data based on selection, transmission packet is sent by the port of intelligent network interface card to opposite end, wherein, the port of intelligent network interface card corresponds to light link exchange and electric link exchange respectively；Or
Transmission packet is sent to interchanger by intelligent network interface card, the link exchange of the transmission data based on selection sends transmission packet by the port of interchanger to opposite end, wherein, the port of interchanger corresponds to light link exchange and electric link exchange respectively.
Optionally, transmission packet is being sent to interchanger by intelligent network interface card, the link exchange of the transmission data based on selection, by the port of interchanger to before opposite end transmission transmission packet, transmitting element 94 is further used for：
Link indicia is added for transmission packet, wherein, link indicia is used to indicate to send using electric link exchange or send using light link exchange.
In summary, in order to make full use of photoelectricity hybrid network to send data, the embodiments of the invention provide a kind of data transmission method and device of photoelectricity hybrid network, this method is：RDMA transmission requests are received, RDMA transport-types and transmitted data amount size that request determines to carry out data transmission are transmitted according to RDMA；It is determined that RDMA transport-types and the default encapsulation format of the transmitted data amount size carried out data transmission that correspondence carries out data transmission；Data to be transmitted is received, and data to be transmitted is encapsulated as the default of determination The transmission packet of encapsulation format；According to the size of transmission packet, the link exchange carried out data transmission is selected in electric link exchange and light link exchange, and the link exchange of the transmission data based on selection sends the transmission packet to opposite end.
Therefore, intelligent network interface card on main frame is by analyzing receiving the RDMA carried out data transmission transmission requests, it is determined that the RDMA transport-types and transmitted data amount size that carry out data transmission, and determine that rational link exchange is transmitted according to the corresponding data package size being finally packaged into, avoid and send data packets at interchanger further according to traffic statistics result selection link exchange, cause the transmitting efficiency of system relatively low and the problem of to follow-up data packet stream amount prediction error, rational link exchange can be selected by realizing the RDMA transmission carried out data transmission every time, the problem of avoiding the wasting of resources, so that the resource of photoelectricity hybrid network has obtained the utilization of maximal efficiency.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program product.Therefore, the form of the embodiment in terms of the present invention can use complete hardware embodiment, complete software embodiment or combine software and hardware.Moreover, the present invention can use the form for the computer program product implemented in one or more computer-usable storage mediums (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.) for wherein including computer usable program code.
The present invention is flow chart and/or block diagram with reference to method according to embodiments of the present invention, equipment (system) and computer program product to describe.It should be understood that can by the flow in each flow and/or square frame and flow chart and/or block diagram in computer program instructions implementation process figure and/or block diagram and/or square frame combination.These computer program instructions can be provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices to produce a machine so that produce the device for being used for realizing the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames by the instruction of the computing device of computer or other programmable data processing devices.
These computer program instructions may be alternatively stored in the computer-readable memory that computer or other programmable data processing devices can be guided to work in a specific way, so that the instruction being stored in the computer-readable memory, which is produced, includes the manufacture of command device, the command device realizes the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, so that series of operation steps is performed on computer or other programmable devices to produce computer implemented processing, so that the instruction performed on computer or other programmable devices provides the step of being used to realize the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creative concept, then other change and modification can be made to these embodiments.So, appended claims are intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the spirit and scope of various changes and modification without departing from the embodiment of the present invention to the embodiment of the present invention.So, if these modifications and variations of the embodiment of the present invention belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.

Claims (14)

  1. A kind of data transmission method of photoelectricity hybrid network, it is characterised in that including：
    Remote direct data access RDMA transmission requests are received, RDMA transport-types and transmitted data amount size that request determines to carry out data transmission are transmitted according to the RDMA；
    It is determined that the RDMA transport-types and the default encapsulation format of the transmitted data amount size carried out data transmission that carry out data transmission described in correspondence；
    Data to be transmitted is received, and the data to be transmitted is encapsulated as to the transmission packet of the default encapsulation format of the determination；
    According to the size of the transmission packet, the link exchange carried out data transmission is selected in electric link exchange and light link exchange, and
    The link exchange of the transmission data based on selection sends the transmission packet to opposite end.
  2. The method as described in claim 1, it is characterised in that before reception RDMA transmission requests, further comprise：
    Receive the RDMA transmission sent to the opposite end and set up request message, determine that the corresponding RDMA transport-types of request message are set up in the RDMA transmission；
    The corresponding RDMA transport-types of request message are set up according to RDMA transmission, RDMA transmission is set up into request message is encapsulated as signaling data bag, and
    The electric link exchange of selection sends the signaling data bag to the opposite end.
  3. Method as claimed in claim 1 or 2, it is characterised in that described that RDMA transport-types and transmitted data amount size that request determines to carry out data transmission are transmitted according to the RDMA, including：
    The RDMA transport-types carried out data transmission described in the command code determination in request are transmitted according to the RDMA, and
    The RDMA transmitted data amount sizes carried out data transmission described in data link table to be sent and the determination of data block number in request are transmitted according to the RDMA.
  4. Method as described in claim any one of 1-3, it is characterised in that the size according to the transmission packet, selects the link exchange carried out data transmission in electric link exchange and light link exchange, Including：
    If it is determined that the size of the transmission packet is less than default thresholding, then electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange；
    If it is determined that the size of the transmission packet is more than or equal to default thresholding, then when light link exchange is available, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange, when light link exchange is unavailable, selected according to the transmission cost of the transmission packet in electric link exchange and light link exchange described in the link exchange that carries out data transmission.
  5. Method as claimed in claim 4, it is characterised in that the transmission cost according to the transmission packet selected in electric link exchange and light link exchange described in the link exchange that carries out data transmission, including：
    Calculate and use electric link exchange to send the first duration that the transmission packet needs, and calculate the second duration for setting up new light link exchange needs；
    If first duration is more than or equal to second duration, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange；
    If first duration is less than second duration, electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange.
  6. The method as described in claim 1, it is characterised in that the link exchange of the transmission data based on selection sends the transmission packet to opposite end, including：
    The link exchange of the transmission data based on selection, the transmission packet is sent by the port of intelligent network interface card to the opposite end, wherein, the port of the intelligent network interface card corresponds to light link exchange and electric link exchange respectively；Or
    The transmission packet is sent to interchanger by intelligent network interface card, the link exchange of the transmission data based on selection, the transmission packet is sent to the opposite end by the port of the interchanger, wherein, the port of the interchanger corresponds to light link exchange and electric link exchange respectively.
  7. Method as claimed in claim 6, characterized in that, sending the transmission packet to interchanger, the link exchange of the transmission data based on selection by intelligent network interface card, before sending the transmission packet to the opposite end by the port of the interchanger, further comprise：
    Link indicia is added for the transmission packet, wherein, the link indicia is used to indicate to send using electric link exchange or send using light link exchange.
  8. A kind of data transmission device of photoelectricity hybrid network, it is characterised in that including：
    Receiving unit, for receiving remote direct data access RDMA transmission requests, RDMA transport-types and transmitted data amount size that request determines to carry out data transmission are transmitted according to the RDMA；
    Determining unit, for the RDMA transport-types and the default encapsulation format of the transmitted data amount size carried out data transmission for determining to carry out data transmission described in correspondence；
    Encapsulation unit, for receiving data to be transmitted, and the data to be transmitted is encapsulated as the transmission packet of the default encapsulation format of the determination；
    Selecting unit, for the size according to the transmission packet, selects the link exchange carried out data transmission in electric link exchange and light link exchange, and
    Transmitting element, the link exchange for the transmission data based on selection sends the transmission packet to opposite end.
  9. Device as claimed in claim 8, it is characterised in that before reception RDMA transmission requests, further comprise：
    The receiving unit, request message is set up for receiving the RDMA sent to the opposite end transmission, determines that the corresponding RDMA transport-types of request message are set up in the RDMA transmission；
    The determining unit and the encapsulation unit, for setting up the corresponding RDMA transport-types of request message according to RDMA transmission, set up request message by RDMA transmission and are encapsulated as signaling data bag, and
    The selecting unit and the transmitting element, for selecting electric link exchange to the opposite end transmission signaling data bag.
  10. Device as claimed in claim 8 or 9, it is characterised in that when the RDMA transport-types carried out data transmission according to RDMA transmission request determinations and transmitted data amount size, the receiving unit is used for：
    The RDMA transport-types carried out data transmission described in the command code determination in request are transmitted according to the RDMA, and
    The RDMA transmitted data amount sizes carried out data transmission described in data link table to be sent and the determination of data block number in request are transmitted according to the RDMA.
  11. Device as described in claim any one of 8-10, it is characterised in that the size according to the transmission packet, when selecting the link exchange carried out data transmission in electric link exchange and light link exchange, the selecting unit is used for：
    If it is determined that the size of the transmission packet is less than default thresholding, then electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange；
    If it is determined that the size of the transmission packet is more than or equal to default thresholding, then when light link exchange is available, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange, when light link exchange is unavailable, selected according to the transmission cost of the transmission packet in electric link exchange and light link exchange described in the link exchange that carries out data transmission.
  12. Device as claimed in claim 11, it is characterised in that the transmission cost according to the transmission packet selected in electric link exchange and light link exchange described in carry out data transmission link exchange when, the selecting unit is used for：
    Calculate and use electric link exchange to send the first duration that the transmission packet needs, and calculate the second duration for setting up new light link exchange needs；
    If first duration is more than or equal to second duration, light link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange；
    If first duration is less than second duration, electric link exchange is selected to be used as the link exchange carried out data transmission in electric link exchange and light link exchange.
  13. Device as claimed in claim 9, it is characterised in that when the link exchange of the transmission data based on selection is to the opposite end transmission transmission packet, the transmitting element is used for：
    The link exchange of the transmission data based on selection, the transmission packet is sent by the port of intelligent network interface card to the opposite end, wherein, the port of the intelligent network interface card corresponds to light link exchange and electric link exchange respectively；Or
    The transmission packet is sent to interchanger by intelligent network interface card, the link exchange of the transmission data based on selection sends the transmission packet by the port of the interchanger to the opposite end, Wherein, the port of the interchanger corresponds to light link exchange and electric link exchange respectively.
  14. Device as claimed in claim 13, it is characterized in that, the transmission packet is being sent to interchanger by intelligent network interface card, the link exchange of the transmission data based on selection, before sending the transmission packet to the opposite end by the port of the interchanger, the transmitting element is further used for：
    Link indicia is added for the transmission packet, wherein, the link indicia is used to indicate to send using electric link exchange or send using light link exchange.
CN201580001273.0A 2015-05-26 2015-05-26 data transmission method and device of photoelectric hybrid network Active CN106664290B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/079829 WO2016187813A1 (en) 2015-05-26 2015-05-26 Data transmission method and device for photoelectric hybrid network

Publications (2)

Publication Number Publication Date
CN106664290A true CN106664290A (en) 2017-05-10
CN106664290B CN106664290B (en) 2019-12-06

Family

ID=57392306

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201580001273.0A Active CN106664290B (en) 2015-05-26 2015-05-26 data transmission method and device of photoelectric hybrid network

Country Status (3)

Country Link
US (1) US10868767B2 (en)
CN (1) CN106664290B (en)
WO (1) WO2016187813A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111885038A (en) * 2020-07-16 2020-11-03 深圳思凯微电子有限公司 Data packaging method, device and system and computer readable storage medium
CN112187760A (en) * 2020-09-22 2021-01-05 宏图智能物流股份有限公司 Network request tamper-proof method based on data splitting
CN112367536A (en) * 2020-02-20 2021-02-12 上海交通大学 RDMA (remote direct memory Access) mixed transmission method, system and medium for large data of video file
WO2021057068A1 (en) * 2019-09-24 2021-04-01 支付宝(杭州)信息技术有限公司 Rdma data flow control method and system, electronic device and readable storage medium
CN112600826A (en) * 2020-12-10 2021-04-02 中国科学院深圳先进技术研究院 Virtualization security gateway system
CN113452608A (en) * 2020-03-25 2021-09-28 阿里巴巴集团控股有限公司 Data transmission method and device, electronic equipment and computer readable medium
CN115053502A (en) * 2020-02-17 2022-09-13 国立研究开发法人产业技术综合研究所 Communication control method and communication control device
CN115174484A (en) * 2022-06-16 2022-10-11 阿里巴巴（中国）有限公司 RDMA (remote direct memory Access) -based data transmission method, device, equipment and storage medium

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105141603B (en) * 2015-08-18 2018-10-19 北京百度网讯科技有限公司 Communication data transmission method and system
US10733137B2 (en) * 2017-04-25 2020-08-04 Samsung Electronics Co., Ltd. Low latency direct access block storage in NVME-of ethernet SSD
US10659376B2 (en) * 2017-05-18 2020-05-19 International Business Machines Corporation Throttling backbone computing regarding completion operations
US11095961B2 (en) * 2019-07-15 2021-08-17 Viscore Technology Inc. Remote data multicasting and remote direct memory access over optical fabrics
CN113076280B (en) * 2019-12-18 2024-03-01 华为技术有限公司 Data transmission method and related equipment
US11467992B1 (en) 2020-09-24 2022-10-11 Amazon Technologies, Inc. Memory access operation in distributed computing system
US11409685B1 (en) 2020-09-24 2022-08-09 Amazon Technologies, Inc. Data synchronization operation at distributed computing system
US11354258B1 (en) * 2020-09-30 2022-06-07 Amazon Technologies, Inc. Control plane operation at distributed computing system
CN112653634A (en) * 2020-12-10 2021-04-13 苏州浪潮智能科技有限公司 Flow control method, device, equipment and readable storage medium
US20230066835A1 (en) * 2021-08-27 2023-03-02 Keysight Technologies, Inc. Methods, systems and computer readable media for improving remote direct memory access performance
WO2023032200A1 (en) * 2021-09-06 2023-03-09 日本電信電話株式会社 Communication system, computer, communication method, and program
CN117318642B (en) * 2023-11-29 2024-02-23 合肥博律微波技术有限公司 LC filter metal casing encapsulation equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0330546A (en) * 1989-06-27 1991-02-08 Nec Corp Packet switch
US20140019574A1 (en) * 2012-07-12 2014-01-16 International Business Machines Corp. Remote Direct Memory Access Socket Aggregation
CN103636181A (en) * 2011-06-29 2014-03-12 微软公司 Transporting operations of arbitrary size over remote direct memory access
CN103889054A (en) * 2014-04-11 2014-06-25 中国人民解放军信息工程大学 AP, mobile terminal and mobile terminal positioning system and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103685033B (en) 2013-12-19 2017-01-04 武汉邮电科学研究院 SDN framework is supported packet switch and Circuit-switched general flow table and method
US9313147B1 (en) * 2014-01-27 2016-04-12 Google Inc. Cutting and adding links within a switch
CN103997458B (en) 2014-03-18 2017-04-12 华信咨询设计研究院有限公司 Node cost optimal route selection method based on optical-electrical hybrid cross-connection
US9892075B2 (en) * 2015-12-10 2018-02-13 Cisco Technology, Inc. Policy driven storage in a microserver computing environment
US10187292B2 (en) * 2016-04-15 2019-01-22 Microsoft Technology Licensing, Llc Data center topology having multiple classes of reliability

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0330546A (en) * 1989-06-27 1991-02-08 Nec Corp Packet switch
CN103636181A (en) * 2011-06-29 2014-03-12 微软公司 Transporting operations of arbitrary size over remote direct memory access
US20140019574A1 (en) * 2012-07-12 2014-01-16 International Business Machines Corp. Remote Direct Memory Access Socket Aggregation
CN103889054A (en) * 2014-04-11 2014-06-25 中国人民解放军信息工程大学 AP, mobile terminal and mobile terminal positioning system and method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021057068A1 (en) * 2019-09-24 2021-04-01 支付宝(杭州)信息技术有限公司 Rdma data flow control method and system, electronic device and readable storage medium
CN115053502A (en) * 2020-02-17 2022-09-13 国立研究开发法人产业技术综合研究所 Communication control method and communication control device
CN112367536A (en) * 2020-02-20 2021-02-12 上海交通大学 RDMA (remote direct memory Access) mixed transmission method, system and medium for large data of video file
CN112367536B (en) * 2020-02-20 2021-08-06 上海交通大学 RDMA (remote direct memory Access) mixed transmission method, system and medium for large data of video file
CN113452608A (en) * 2020-03-25 2021-09-28 阿里巴巴集团控股有限公司 Data transmission method and device, electronic equipment and computer readable medium
CN111885038A (en) * 2020-07-16 2020-11-03 深圳思凯微电子有限公司 Data packaging method, device and system and computer readable storage medium
CN111885038B (en) * 2020-07-16 2022-06-10 深圳思凯微电子有限公司 Data packaging method, device and system and computer readable storage medium
CN112187760A (en) * 2020-09-22 2021-01-05 宏图智能物流股份有限公司 Network request tamper-proof method based on data splitting
CN112187760B (en) * 2020-09-22 2022-11-08 宏图智能物流股份有限公司 Network request tamper-proof method based on data splitting
CN112600826A (en) * 2020-12-10 2021-04-02 中国科学院深圳先进技术研究院 Virtualization security gateway system
CN112600826B (en) * 2020-12-10 2022-02-22 中国科学院深圳先进技术研究院 Virtualization security gateway system
CN115174484A (en) * 2022-06-16 2022-10-11 阿里巴巴（中国）有限公司 RDMA (remote direct memory Access) -based data transmission method, device, equipment and storage medium

Also Published As

Publication number Publication date
WO2016187813A1 (en) 2016-12-01
CN106664290B (en) 2019-12-06
US10868767B2 (en) 2020-12-15
US20180102978A1 (en) 2018-04-12

Similar Documents

Publication Publication Date Title
CN106664290A (en) Data transmission method and device for photoelectric hybrid network
US20210243247A1 (en) Service mesh offload to network devices
CN108881008B (en) Data transmission method, device and system
CN113728596A (en) System and method for facilitating efficient management of idempotent operations in a Network Interface Controller (NIC)
CN104378308A (en) Method and device for detecting message sending rate
CN106034084B (en) Data transmission method and device
CN104104609B (en) For providing the method and system of fiduciary flow control in network
RU2589398C2 (en) Data-fast-distribution method and device
US11936571B2 (en) Reliable transport offloaded to network devices
JP6177934B2 (en) Data retransmission method and access network gateway in cooperative service transmission
WO2019204311A1 (en) Technologies for out-of-order network packet management and selective data flow splitting
CN107770807A (en) A kind of data processing method and device
CN105141603A (en) Communication data transmission method and system
CN113301007A (en) Data transmission method, computing device and storage medium
CN113347017B (en) Network communication method and device, network node equipment and hybrid network
CN104378315A (en) Method and device for CAPWAP tunnel data package transmission
CN104303471A (en) Method and apparatus for providing content by selecting data acceleration algorithm
CN109714128B (en) Data transmission method, device and computer storage medium
CN109428842A (en) A kind of QoS information transfer approach and device
CN107995315B (en) Method and device for synchronizing information between service boards, storage medium and computer equipment
CN110611548B (en) Data transmission method, device, transmitting device, receiving device and storage medium
CN107659966A (en) Data transmission method, the network equipment, user terminal, gateway device
CN103036815B (en) A kind of information technology and communication technology ICT emerging system
WO2019015487A1 (en) Data retransmission method, rlc entity and mac entity
CN112422457B (en) Message processing method and device and computer storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant